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Finding the Fourth Proportional to 214.22, 294.85 and 186.46

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Solution

The fourth proportional to 214.22, 294.85 and 186.46 is: 256.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.22 : 294.85 = 186.46 : x
  2. Step 2: Convert to fraction form
    214.22/294.85 = 186.46/x
  3. Step 3: Cross multiply
    214.22x = 294.85 × 186.46
  4. Step 4: Simplify right side
    214.22x = 54,977.73
  5. Step 5: Solve for x
    x = 54,977.73/214.22
  6. Step 6: Final answer
    x = 256.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.